ESM 2104 Lecture Notes - Lecture 1: Kilogram, Physical Quantity, Statics
23 Aug 2016
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Document Summary
Mechanics the state of bodies subjected to forces. Three types of bodies, rigid bodies (which include statics and dynamics), deformable bodies, and fluid bodies. Dynamics motion of bodies under acceleration or force (newton(cid:859)s second) Statics equilibrium of bodies at rest or at a constant velocity, a special case of dynamics when acceleration or force equals zero. Space geometric region occupied by a body; position of body as described by linear/angular measurements. 2d in order for an object to be 2d, 2 different coordinates are needed (x, y) Time statics are independent of time (rest or constant velocity) Mass measure of resistance to a change in velocity; measure of quantity of matter. Force a (cid:858)push(cid:859) or (cid:858)pull(cid:859) exerted by one body on another; can occur through contact or a distance; has a magnitude, direction, and point of application. Length locates a point in space or size of system. Idealizations (cid:858)models(cid:859) simplify the application of theory.
